Tag: ethereum

A: Mobility as a service (MaaS) through connecting Ethereum smart contracts with Datastreams on IOTA.

Q: What problem does your project solve?

A: We wanted to develop a case in the field of autonomous urban air mobility, better known for example as the concept of air taxis. In order to implement such an autonomous mobility concept, you have to bring together different partners. Making an air taxi fly is actually a bit more complicated than sending an autonomous car into traffic. Because you need some very important permission before you are allowed to start.

There is, for example, the flight control that has to check all the details of your flight to make sure that there is no other vehicle on the same route. Or the weather forecast service telling you if the conditions are okay for your flight. In addition to the permits, there are also other stakeholders, who should be integrated into the process. What about the insurance company offering real time insurance conditions depending on how much passengers you have and how long your flight will take? Or the booking platform where everybody can book easily his flight in an air taxi? So, at the end, it just makes sense to involve all parties in smart contracts on blockchain to automate as much processes as possible. And this is what we did.

Q: What expertise and roles do your team members have?

A: In our team we were one designer and two backend developers with numerous experiences in blockchain projects.

Q: Which technologies do you use for which purposes?

A: Mainly we used all kind of Ethereum based smart contracts, to bring the different participants together on a decentralized network. To get real time data of the air taxi we used the data streaming technology of IOTA. In our case, we created a process that opens a new data stream automatically in the moment in which the air taxi starts. From this point on we push the data stream in our Ethereum based smart contracts. To show the connection between IOTA and Ethereum, we used the data of the battery of the air taxi. The battery will be a very critical point for every autonomous process in the future. Because, while the air taxi is flying, the partners around, like for example the market places where you can book your air taxi, need the information when the air taxi will be available again for the next flight. And that is highly depended on the current status of the battery. So, to know in advance how long the air taxi has to charge after the flight before it can go back in the air, you need real time information about the battery condition.

Q: How do you plan to proceed with your project?

A: We will use the developed demo to show, what type of use cases you can implement at evan.network.

Here’s a quick overview of four of the newest crypto wallets with built-in DAPP browsers

If ethereum is to realize its promise as the “world computer” we’re going to need more advanced wallets. Mobile has arguably overtaken desktop as the dominant paradigm for interacting on the web but most decentral applications aren’t mobile ready. DAPPs promise to be our connection to voting, governance and the backbone of the web’s future. There are lots of mobile wallets available now but in the coming world, just sending tokens and crypto back and forth won’t be enough.

Today we’re taking a quick look at four bleeding-edge wallets which combine a DAPP browser with a mobile crypto wallet. Since development in this area moves very very fast we’re not going to make any kind of a ranking. Instead, we’ll list a few key features where each app shines.

Cipher Browser

The Cipher Browser has a solid DAPP browser which handles the login process for early DAPPs such as cryptokitties.co and leeroy.io as though one was using metamask. The Touch ID integration is good and approving transactions is pain-free. In addition, adding custom ERC20 tokens to the app is quick and straightforward if you are someone who knows their way around etherscan and who’s not afraid to find out how many digits a token contract allows.

Who’s it for? Old-school crypto nerds who want to keep it simple.

Toshi Browser

The open source Toshi browser is not only a wallet and a DAPP browser but also an encrypted chat platform. It uses a chatbot for the initial user journey which in our experience is an either a “you love it or you hate it” kind of thing. After that, one can access an app store like DAPP browser, a public chat client based on identities tied to ethereum addresses and a wallet supporting both fungible and non-fungible ethereum assets.

Toshi uses the Signal protocol by Whisper Systems for chat and the uPort identity protocol to store user profiles. All in all, it’s pretty forward thinking stuff if a bit cluttered at times. There’s also one weakness for industrial applications. Developers and other geeks may want to work on more than one network (Testnet, POA etc.) If that’s your use case, this one isn’t for you.

Who’s it for? Social crypto nerds who love trying out new stuff.

Status Browser

Status takes the social / chat idea from Toshi to the next level. In Status, one finds not only contacts in the chat interface but also DAPPs. As in Toshi, setup occurs via a dialogue with a chatbot. Again this isn’t for everyone, but it’s super for people who prefer onboarding by bot.

Status defines itself as a new kind of peer-to-peer encrypted messaging and payment system rather than a DAPP browser or a wallet. Yes, it does offer those things too, but everything in the Status app is centered around chat. The idea is that people do business and transact with other people, so their communication should enable that.

Right now, status is only available as an alpha release that you can test on the testnet using Testflight (iOS). There’s a very lively Discord community if you want to jump in and join the dialogue.

Who’s it for? Do you dream of native ethereum transactions while using whatsapp? Then this app is for you!

Trust Wallet

Like Cipher, Trust Wallet offers a more conventional experience. There’s a browser tab, a transactions tab, a tokens tab, and settings. Everything is pretty self-explanatory. The Web3 integration in the DAPP browser is great, so log in and transaction approval are simple. Also, the developer is working with decentral exchanges such as Kyber Network to make sure the DAPP creators are building stuff that is actually usable on mobile.

Also, this open source app is the only one on our list that may be appropriate for use in industrial applications. This is due to the fact that the Trust wallet allows the user to switch the network and that a proof-of-authority network connection is possible.

More and more Big Data projects we with Datarella are involved in demand not only administrative or legal security layers but also state-of-the-art technical frameworks to provide the maximum security there is for business as well as petsonal data.

To provide our clients with sustainable solutions we have partnered with Ethereum and its spin-off Ethcore. The Ethereum framework enables us to build business models on top of it, using a very sophisticated blockchain approach, smart contracts and elements of the DAO concept and finally, our own product, the Datarella Data Trust.

Since the blockchain, smart contracts, DAO and especially Ethereum are quite new to the Big Data scene, we aim to make them better known to a broader audience. So we have started the Ethereum Munich Meetup as a platform for presentations, discussions and development of Ethereum-based ideas, concepts, use cases, projects, etc..

If you are interested in all things Ethereum feel invited to our regular meetups!

We always take a little time in the very first days of a year to define Datarella’s main goals for this year. This time it was a pleasant task since 2015 went very well for Datarella: we achieved most of our goals and we could start without any legacy issues.

So, what to expect from Datarella in 2016? Beside our growing consulting business with fascinating projects and clients, we will focus on our product Data Trust and our project Data Coach. Due to our tight schedule in 2015, we haven’t published much about Data Trust and Data Coach, yet. I’d like to give a brief overview on both in this post.

Data TrustGenerally speaking, Data Trust is a secure data market model for Big Data projects. Sharing data between businesses makes much sense: Both, data processing and analytics scale with the data, and development, quality assurance, as well as support become very efficient. The problem: Many businesses are hesitant to share their data with partners for security reasons, to maintain their competitive advantage, and also obligatory compliance aspects regarding data protection.

Data Trust solves this deadlock: With it we provide a secure sharing solution for corporations. Datarella organizes each client’s original data in separate data buckets.

Data Trust enables businesses to put their data to work together with the data of their business partners with guaranteed data security and control. Without giving away their data, they can now profit from analytics, results, and predictions that are based on the joint data within their network of partners. Thus, Data Trust is a market model – it provides each participant of a market with unparalleled insights into the market.

The Datarella Prediction Engine runs on top of the separated data buckets. The Datarella Prediction Engine has been designed for gathering precise statements regarding future business success in the areas of media & advertising, eCommerce, finance, mobility and health. Together with the Datarella Prediction Engine, Data Triust provides an absolutely trustful environment for clients to manage and analyze their company’s data.

Of course, the Datarella Data Trust can be audited.

Data CoachWhereas Data Trust already is a product and is already creating value for our clients, Data Coach is still in an experimental phase. The user interface of Data Coach is an app that provides the user with body activity and environmental data. The user shares this data with a closed professional graph and receives actionable insights into her health condition, behavior, training, etc. as feedback. Based in this feedback the user can react by changing her behavior.

The core of Data Coach is a blockchain environment that provides three essential elements of a professional network:

Data Security

Data Provenance

Peer-to-Peer Architecture

Cryptographic hash functions and completely historicized data chains make data sharing absolutely secure. The user completely owns her data. And she always knows her data’s whereabouts and defines whi can use it, how and when.

An essential part of our Data Coach project is our partner Ethereum, that provides a decentralized blockchain platform we build Data Coach on.

We are running very early tests of Data Coach in the area of sports and entertainment. We are active,y looking for partners to establish a pilot project in the health sector. So, if you think Data Coach could add value to your business and customers or patients, please don’t hesitate to contact me.